Life-boat lowering and hoisting apparatus for use on ships.



EATENTED AUG. Z1, i806.

J. BGAG. LIFE BUAT LOWERING AND HUISTING APPARATUS FOR USE 0N SHIPS.

APPLIUATION ILED JN. i3. 1906.

3 SHEETS-SHEET 1.

mm1 ron l JonBog @7a/bm Arrofmfrs No. 829,054` PATBNTBD AUG. 21, 1906.

J. BoAG. LIFE BoAT LOWERING AND HoIsTING APPARATUS PoR USE 0N SHIPS.

APPLIGATN FILED JAN. 13. 190B.

3 SREETS-BHEET 2.

j H yam/QM) EATENTBD AUG. 21, i906 JL BOAG. MPE BOAT LOWERING AND HOISTING APPARATUS Foa USB 0N SHIPS'.

APPLIUATION YILEB JAN. 13, 19GB.

3 SHEETS-SHBET 3.

UNITED STATES PATENT OFFICE.

VJOHN soAo, or KEARNEY. NEW JERSEY.

Specification of Lettera Patent.

Patented Aug. 21, 190B.

Application tiled Innung 13. 190B. Serial No. 296,846.

To all, who-nt it may concern:

Be it known that l, JOHN Boao, a citizen of the United States, residing at Kearney, in the State of New Jersey, have invente certain new and useful Improvements in Life- Boat Lowering and Hoisting Apparatus for l'se on Ships, of which the fo lowing is a specification, suoli as will enable those skilled in the art to `which it appertains to make and use the same.

This invention relates to means or apparatus for lowering and raising life-boats; and the object thereof is to rovicle an improved apparatus of this class wrhich is-sim le 1n construction and operation and whic may be used on any kind or class ofships or vessels and by means of which a life-boat may be easily and safely lowered when desired and also as easily and safely raised, a further ob*- 'ect being to provide an a paratus of the class specified which may be operated l) hand or by mechanical means; and wit these and other objects in view the invention consists in an apparatus of the classiand for the purpose specified constructed as hereinafter described and claimed.

The invention is .full Y disclosed in the following specification, o which the accompanying drawings form a part, in which the separate parte of my improvement are designated b suitable reference characters in each of t e views, and in which- Figure l is an end view of my improved lowering 'and raising a paratusfor life-boats; Fig. 2, an outboard si e view thereof; Fig. 3,

an inboard side view of the framework or casing of the o 'ierative mechanism; Fig. 4, an outboard si e View of the framework or casinpy of the operative mechanism; Fig. 5, a vertical section through said mechanism on the line 5 5 of Fig. 1. Fig. 6, asecton on the line 6 6 of Fig. 1;l Fig. 7, a section on the line 7,7 of Fig. 4; Fig. 8, asection on the line 8 8 of Fig. 2; Fig. 9, a side view of the support for one of the davits which l employ, and Fig. 1U a view at right anelcs to FiV 9.'

ln the drawinvs forming part o this specilication l have s iown at a in Figs, l,`2, and 9 a part of the deck of a vessel, and in the practice of icy-'invention I secure thereto or to any suitable sup ort placed thereon transvrsely arrange brackets b, in which is mounted a lon 'tudinally-arranged davitshaft b', provide preferably, centrall *thereof with a worm-gear b, and arrange transversely of the shaft b is a power-shaft b, pro- Lalso shown at c5 .vided with a worm b5, which meshes witltthe worm-gear b, these parts being clearly shown in Figs. l, 2, 7,v and 8.

Rigidly connected with the opposite end portions of the shaft b* and adapted to turn therewith are davits c, the upper and free ends of which are connected by rods c2, and the end ortions of said davits are also provided wlth blocks c, through which are passed ropes c, and in Figs. l and 2 l have a life-boat provided with blocks c, through which the ropes c are also passed, and in practice the ropes c are manipulated, as hereinafter described, to lower and raise the life-boat.

The Giver-shaft b* ranges transversely and inwar y of the deck of the vessel, and placed inwardly of the davt-shsft b is the mechanism by which the shaft b* and the boat-sup porting ropes c are manipulated for operatlng the davits c to raise and lower ,the boat. his mechanism is mounted in a suitable arriework d, comprising in the form of cion- Vstruction shown inner and outer plates or member d2 and d3, connected in any desired m nner and into or through which the shaft b* passes. 'The shaft b* is provided within the casing or framework d with a pinion b", as shown in Fig. l, and mounted in said framework or casing over the shaft L* is a crankshaft d, provided with a geanwheel di, which meshes withthe pinion b, and the said shaft d* is provided in the form of construction shown and at either or both ends thereof with a crank d".

Mounted centrally of the framework or casing d is a drum-shaft e, provided with a drum e2, divided centrally by a disk c into two separate parts, and the ro es c", which operate the boat c5 and by whc said boat is lowered and raised, are connected with the opposite end members of said drum, one ol' said ropes being secured to the bottom of one lof said drum members and the other to the top of the other drum member, so that when the said drum is turned thel said ropes will both he wound on or unwound from the drum, according to the direction in which the drum is turned.

The drum e is band or strap bra Fig. 7, also in Fig.

dotted lines in Fig.

rovided at one end with a e e, (shown in full lines in 1, and clearly indicated in 5,) and connected with the free end of said band or stra i brake is a rod e, part o-which is scrcw-t rceded, as shown at e in Fig. 6, and passed through a IIO assets @dlkee f if e7, Seemed 10 the outer Hide er bit s casing-0r mmprk d, and, 'poviclf'sdy t'yits enld with a crank-- `bsfwhflfih it may `vices `by which the boat is secured in tho cragils are released, arul the shaft h is turned to the right. This operation results `in turning thevshsft 'gland the drum'e.' and rilg the "boat 4out of` its 'rdle; x The shaft bf is then turned tothe left by means of the shaft dl,

4sind thisfoperqtion also turns the (invit-shaft b spd swings the` davitseinto the. osition shown in ydottegl lines vlill Fig. 1,in w ich the hostie freely suspended over and beyond the sirio ofthe vessel. Y Thebrske e4 ms now be Irisnipulted, so-sstorelesse the f rum `sind Vallow ,il tftrp freely, and lin .this operation the Shitmyalso be turned, s0 as t0 throw theshst g'outof. gear with the. drum e', and

the llnt'fifvi.l1` dm'prfrsely into the water It willh understood that `this .downward movemlitpf .thebat may bresulnted as .may be desiredb means of the brake-rod 5, and itnders'twd -thstthe 'shafts need A not '-nes'ssilybe throws out of gear with pstb "SiiQS "tlil- .9" s .l Pro- 1 with Whighzre Hikes .9% ,Wisch @restless comi-@steed rms g?, secured to s shaft t; t vtinus-Ishiift ,h1 is'mounted inthe ,framaal` parallel with-the' Shsftyiarld L i,- fsid Said 'Shst his; .rvvided s lS4 with. s crank ,L ililthe asd said Shaft miss fk", .s whih @Shafts sndsmd hsft fl 1S also 'provided with a hi meshes with-the Vgesti-Whse or. donnshft .ef

.lm t i iS rrrlimllted parallel with theY below vthe some' inthe' form of shown; 'sildssid Sha-ft 'iis` end.. rwith .a crank-smi, which is operated by, s".1.md arms 9%, @www `whiehare secured to Ithe Gnthat by depressin the .disksrgzfwill be turned an be miseri., S0 as` t0 thro ection with the ,goor-,Wiegel the form A'i2` this operation l ,l ctiQn Shown;

endors free to revolve in the Vtiotfliwm'd moment of Ythe bont, if desired,- l`In order to miss the host, ithe Shaft l1.@isp.rsvisllwlybeen thrown out of Y ear wit tho drum-e seid shsft is thrown sek into swr with .Ssid drum by rsiss' the arm i of the Shafts', ndfthe-shsfthis t en turned, so to operstejthe .drumsnd the ,I-'ppss v t eren fullynmllted 'and the b oat v lsisscl to the desired height, as. shown in full lines 'in lith@ brake e* is tightened, and the Shaft is turned, so ss to swing the dYiztS End boat into the position shown in fulllines in Fig. 1, at which time the boat may be lowered into theridl, (not shown,) as hereinbefore descri e @fnd when thS Dpraton has been- 'Theldsvits c. are provided with chains j,

which are secured to the deck of the vessel at j, and these chains are shown complete in dotted-lines in Fig. 1 and shown artiollyvin full linesin Figs,4 1 and 9, and t lese chains form stays for the davits e and su port and strengthen thorn in 4their outboar osition ss clearly shown in dotted lines in Mig, 1. l lmveslso shown e es or keepers 1c, which ore l secured to the deo' of the vessel and through e th the drum, t ier pinion which the ropes c are passed; but it will Vunderstood that 1n practico pulley-blocks may be employed' for this purpose. Tho

l Hosts' engl 1 drum-sl1sft e is aso provided at the outer end thereof with s ratchet m, and ivotod to tlw casing d at In is a level' n, to w lich is pivotvd s pawln, which operates in connection with the ratchet m und is provided with o pin n",

, movable in o slot n* in the head ol` the lover n, miilsmd lover lisses through o loekin- ,sopor o nog! is m upmflto he movml ioto d furent positions tllsroln, 1n one of which tlm Yporf'lt sngngostlw ratchet m. nml in tho i 4otllorof whlellsold pnwlwout.ofonlgogolnont 1 l" with said rntolnot, uml the ohjoot o A`this oon- A 'struetxon is to movido monos to prnvout the backward movement of the drum e, and to secureiy hod it at anydesired point when the weight of the boat is suspended from the davits c by meansV of the ropes c, and it will be understood that in the lowering of the boat, as hcreinbefore described, the lever n must be operated, so that the pawl n will not engage the ratchet m.

The brackets i), in which the davit-shaft b2 is mounted, are provided with shoulders or projections p, and said davits c are provided with lugs or projections p, which strike against said shoidders and limit the outward movement of the davits when the iatter are,

in the position shown in dotted lines in Fing. l but an y suitabie means maybe provided for acconiplishiopr this result.

ln the accompanying drawings i have shown my improved apparatus designed to be operated b v hand; but it will be apparent that any suitable power mechanism may, if desired, be provided 'for operating the drum e2, and various changes in and modifications of the construction herein shown and described may be made without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what l claim as new, and desire to' secure by Letters Patent, is#

l. in an apparatus of the class described, a horizontaiiyearranged davit-shaft, davits connected therewith and adapted to turn therewith, a transverselyorranged shaft geared in connection with said davit-shaft, a drum, ropes connected therewith and dcsigned to support a boat from said davits, a shaft geared in connection with said drum and adapted to he thrown into and out of gear therewith, an operating-shaft geared in connection with the last-named shaft, and a brake connected with said drum, substantially as shown and described.

2. ln an apparatus ofthe ciass described, a horizontally-arranged (invit-shaft, davits connected therewith, a trans verselyarranged shaft geared in connection with the davitshaft, a craiil shaft geared in connection with the transvcrsely-arranged shaft, a drum divided into two parts, ropes connected with the separate parts of the drum and adapted to support a boat from said davits, said ropes being adapted to be both wound on or both unwound from said drum according to the direction in which the latter is turned, and means for operating said drum, substantially as shown and described.

3. In an apparatus of the class described, a

i horizontally-arranged davitshaft, davits connected with said shaft and adapted to turn therewidi, means for limiting the movement of said shaft, a transversely-arranged shaft geared in connection with said davit shaft, means for operating the transverselyarranged shaft, a drum divided into two "ieans for operating parts, ropes connected with the separato parte of said drum and arranged to suspend a oat from said davits, said ropes being adapted to be wound on or nnwonnd from said druln according to the direction in which the drum is turned, and means for operating said drum, said drum being also provided with a brake, substantially as shown and described.

4. 1n an apparatus of the class described, a horizontally arranged davit shaft, davits connected with said shaft and adapted to turn therewith, means for limiting the movement of said shaft, a transversely-arranged shaft geared in connection with said davit-shaft,

the transverseiy-arranged shaft, a drum divided into two parts, Y.

ropes connected with the separate parts of said drum and arranged to suspend a boat from Said davits, said ro cs'being adapted to be wound on or unwoung from 'said drum according to the direction in which the drum is turned, and means for operating said drum, said drum being also provided with a brake and with a lock, substantially' as shown and described.

5. In an a paratus of the class described, a davit-shaft, avits connected with said shaft and adapted to turn therewith, means for turning said davit-shaft, a drum divided into two parts, ropes connected with the separate parts of said drum and arranged to siipport a boat from said davits, and means for open ating Said drum, consisting of a shaft mounted paralisi with said drum and geared in connection therewith and adapted to be thrown into and out of gear with said drum, and means for operating the iast-nanird shaft,V said drum being also provided with al Brake and with a lock, substantiaiiy es shown and described.

6. in an apparatus of the class described, a horizontally-arranged davit-sh af t, da vits rigidly connected with said shaft and adapted to turn therewith, means for limiting the movement of said davit-sh aft, a transverselyarranged shaft geared in connection with said davit-shaft, a power-shaft geared in connection with the transversely-arranged shaft, a drum mounted parallel with the power-shaft and transversely-arranged shaft and divided into two parts, ropes connected with the separate parts of said drum and arranged to snscnd a boat from said davits, said ropes heing ada ted to be both wound on or unwound from said drum according to the direction in which the drum. is turned, said drum being aiso provided with a brake and with a lock, and means for operating said drum.

7. 1n an apparatus of the class described, a horizontally-arranged davit-shaft, davits rigidly connected with said shaft and adapted to turn therewith, means for limiting' thc movement of said davivsh aft, a transverselyarranged shaft geared in connection with said davit-shaft, a power-shaft L sao tion with the transverselyarranged shaft, a I and transversely-arranged slm'lit and divided drinn mounted parallel with the power-Shaft l into two parts, ropes connected ith tlw vpand transversely-arranged shaft and divided l arate parts'of said drum and arranged lo su into two parts, ropes connected with the sepl pend a boat from said davits, said ropes being.: arate parts of said drum. and arranged to'susadapted to be hoth wound on or unwound pend a boat from said davits, said ropes being l from said drum according to the direction in adapted to he both wound on' or unwound l which the drum is turned, said drum being from said drum-according to the direction in lalso provided with a brake and with a lock, wliich the drum is turned, said dtum being and means for operating si 'd drum, compris'- also provided with a brake and with a lock, ing a shaft mounted parallel therewith and an means for operating said drum, consistgeared in connection therewith nnd movable in" of an eccentriCally-mounted shaft movtoward and from the drum, a power-shaft ah e toward and from and geared in conneclgeared in connection with the last-named shaft, and means whereby said last-1ian1ed tshalt may he moved toward and from the drum without breaking its connection with the power-shaft.

1n testimony that l claim the foregoing as my invention l have signed my name, in prestxon with said drum, and a power-shaft geared in connection with the eccentricallymounted shaft.

In an apparatus of the class descrihed,. a I horizontally-arranged davit-sliaft, davits rigl idl)r connected with said shaft and adapted i meansfor limiting" the to turn therewith, ence of the subscribing Witnesses, this 12th movement of said davit-shaft, a transverselyi day of January, 1906.

arranged shaft geared in connection with said JOHN BOAG. (limit-shaft, a power-shaft geared in eonnec- Titnessesz tion with the transvelsel -ar`ranged shaft, a l F, A. STEWART,

drum mounted parallel with the power-shaft I C. E. MULREANY 

